Digital logic device preset type digital circuit experiment device

Abstract

The invention relates to a digital logic device preset type digital circuit experiment device, comprising a DSP (Digital Signal Processor), a signal generator, device pin modules, a preset experiment switch and a communication interface, wherein the DSP is connected with the signal generator, the device pin modules, the preset experiment switch and the communication interface respectively. The devices used in each experiment are adopted to establish a logical relation database which is stored as preset experiment configuration, and an experiment number is selected according to the preset experiment; when the device is started, according to the state of the preset experiment switch, the experiment number is confirmed by the DSP; when the logical relation database corresponding to the experiment number, a logical relation graph is read, and the DSP configurates the state definition of the corresponding device pin module according to the logical relation graph; and then, the DSP conducts corresponding logical operation and output according to the preset logical relation of each device pin module. Compared with the prior art, the digital logic device preset type digital circuit experiment device has the advantages that the teaching content is broadened, the teaching cost is reduced, the teaching efficiency is enhanced, and the like.

Description

technical field [0001] The invention relates to a digital circuit experiment device, in particular to a digital logic device preset type digital circuit experiment device. Background technique [0002] The digital circuit experimental device is a necessary experimental equipment for learning digital circuit courses and scientific research, and the study of mathematical circuits is a professional basic course for electromechanical students. The use is characterized by a large amount and a wide range, with different levels, and the content and requirements of the specific experiments are completely different. [0003] The current digital circuit experimental device adopts the method of replacing the digital circuit chip when changing the experimental content, which has great limitations in use, fixed experimental content, and a high damage rate of the device. It must be equipped with various types of logic devices and quantities, and the reserve is large. And other issues. W...

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Problems solved by technology

[0004] Among them, the digital circuit computer experimental device with the patent application number 200920173628.6 uses the parallel port of the computer as the signal input and output of the digital circuit, which solves the problem of many digital circuit experimental equipment and high price, but realizes the part of the digital circuit on the computer. The function is only used as the logic circuit under test, instead of completing the characteristics of the actual logic model device, it can only verify the results of logic operations, and cannot combine multiple logic devices into functional experiments, which lacks the ability to train students to face specific device circuit experiments The purpose is that although students have done digital circuit experiments, they are still unfamiliar with the actual use of digital logic chips.

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